Quick Software Configuration 6000's

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C atalyst 60 0 0 Fam ily QuickSoftware Configuration GuideSoftware Release 6.x

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Text Part Number: 78-11206-01


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Catalyst 6000 Family Quick Software Configuration Guide

Copyright 2000, Cisco Systems, Inc.

All rights reserved.


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C O N T E N T S

Preface vii

Audience vii

Organization vii

Related Documentation viii

Conventions viii

Obtaining Documentation ix

W orld Wide Web ix

Documentation CD-ROM ix

Ordering Documentat ion x

Obtaining Technical Assistance x

Cisco Connect ion Online x

Technical A ssistance Center xi

Documentati on Feedback xii

C H A P T E R 1 Basic Software Configuration 1-1

Prepare to Configure the Sw itch 1-2

Estab lish a Console Port Connection 1-2

Set the Sw itch IP Address 1-3

Configure Ethernet Ports 1-5

Configure t he Global System Sett ings 1-7

Check Network Connectivity 1-8


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Contents

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C H A P T E R 2 Configuring VLANs 2-1

Configure VLAN Trunk Protocol 2-1

Configure the Switch as a VTP Server 2-2

Configure the Switch as a VTP Client 2-3

Configure the Switch as VTP Transparent 2-4

Configure VLAN s 2-5

Create VLANs 2-6

Assign Sw itch Ports to VLAN s 2-7

Configure VLAN Trunks 2-8

C H A P T E R 3 Configuring Key Software Features 3-1

Configure the Login Banner 3-1

Configure EtherChannel 3-2

Configure DN S 3-4

Configure CDP 3-5

C H A P T E R 4 Administering the Switch 4-1

M anage Configurati on Files 4-1

M anage System Images 4-3

Use t he Flash File System 4-5

Reset a M odule or the Sw itch 4-10

C H A P T E R 5 Default Configurations 5-1

Default Global System Configuration 5-1

Default Ethernet Configurat ion 5-2

Default VTP Configurat ion 5-3


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Contents

Default VLAN Configuration 5-3

Default Trunk Configurati on 5-4

I N D E X


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Preface

This preface describes the audience, organization, and conventions of this

Catalyst 6000 Family Quick Software Configuration guide and provides

information on how to obtain related documentation.

AudienceThis guide is intended for switch administrators who are familiar with Ethernet,

Fast Ethernet, and Gigabit Ethernet LAN switches but may not have experience

configuring Catalyst 6000 family switches.

OrganizationThis guide is organized as follows:

Title Description

Basic Software Configuration Describes how to configure the switch for

basic network connectivity.

Configuring VLANs Describes how to configure the VLAN Trunk

Protocol (VTP), VLANs, and Ethernet trunk

ports.

Configuring Key SoftwareFeatures

Describes how to configure a variety of usefulsoftware features.


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Preface

Related Documentation

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Related DocumentationThis guide does not fully describe the operation and options for the software

features discussed. Refer to the following documents for complete information:

Release notes for your software release

Catalyst 6000 Family Software Configuration Guide Catalyst 6000 Family Command Reference

ConventionsThis document uses the following conventions:

Administering the Switch Describes how to perform basic switch

administration, including configuration file

and software image management.

Default Configurations Lists default configuration information for the

Catalyst 6000 family software.

Title Description

Convention Description

boldfacefont Commands and keywords are in boldface.

italicfont Arguments for which you supply values are in italics.

[ ] Elements in square brackets are optional.

{ x | y | z } Alternative keywords are grouped in braces and

separated by vertical bars.

[ x | y | z ] Optional alternative keywords are grouped in brackets

and separated by vertical bars.

string A nonquoted set of characters. Do not use quotation

marks around the string or the string will include the

quotation marks.


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Preface

Obtaining Documentation

Notes use the following conventions:

Note Means reader take note. Notes contain helpful suggestions or

references to material not covered in the publication.

Obtaining Documentation

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at

http://www.cisco.com, http://www-china.cisco.com, or

http://www-europe.cisco.com.

Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM

package, which ships with your product. The Documentation CD-ROM is updated

monthly. Therefore, it is probably more current than printed documentation. The

CD-ROM package is available as a single unit or as an annual subscription.

screenf ont Terminal sessions and information the system displays

are in screenfont.

boldface screenfont Information you must enter is inboldface screenfont.

italic screenfont Arguments for which you supply values are in italic

screenfont.

^ The symbol represents the key labeled Controlfor

example, the key combination ^D in a screen displaymeans hold down the Control key while you press the

D key.

< > Nonprinting characters, such as passwords are in angle

brackets.

Convention Description


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Preface

Obtaining Technical Assistance

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Ordering Documentation

Registered CCO users can order the Documentation CD-ROM and other Cisco

Product documentation through our online Subscription Services at

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Nonregistered CCO users can order documentation through a local account

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with Cisco.


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Preface


You can access CCO in the following ways:

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Modem using standard connection rates and the following terminal settings:

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You can e-mail questions about using CCO to [email protected].

Technical Assistance Center

The Cisco Technical Assistance Center (TAC) is available to warranty or

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To display the TAC web site that includes links to technical support information

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To contact by e-mail, use one of the following:

In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For

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Language E-mail Address

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Hangul (Korean) [email protected]

Spanish [email protected]

Thai [email protected]


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Documentation Feedback

If you are reading Cisco product documentation on the World Wide Web, you can

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We appreciate and value your comments.


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C H A P T E R

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1

Basic Software Configuration

Very little configuration is required to establish basic connectivity to your

Catalyst 6000 family switch. This section describes the basic tasks needed to get

your switch up and running:

Step 1 Prepare to Configure the SwitchGather the information you need to configure

the switch.

Step 2 Establish a Console Port ConnectionConnect to the switch via the console port

to access the command-line interface (CLI).

Step 3 Set the Switch IP AddressAssign an IP address, subnet mask, and default

gateway to the switch interface.Step 4 Configure Ethernet PortsMake sure the Ethernet, Fast Ethernet, and Gigabit

Ethernet ports are properly configured to communicate with connected devices.

Step 5 Configure the Global System SettingsConfigure global settings such as system

name, date and time, prompt, and passwords.

Step 6 Check Network ConnectivityUse the pingand traceroutecommands to test

network connectivity.

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Chapter1 Basic Software Configuration

Prepare to Configure the Switch

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Prepare to Configure the SwitchBefore you configure the switch, make sure the switch, modules, and power

supplies are installed and cabled as described in the Catalyst 6000 Family

Installation Guideand Catalyst 6000 Family Module Installation Guide

publications.

Before you begin configuring the switch, you should collect the following

information:

A map or diagram of your network topology showing how the Catalyst 6000

family switch will be used in the network.

The IP address and netmask for the switch. You will assign this address to the

in-band (sc0) interface on the switch.

Establish a Console Port ConnectionConnecting a terminal to the supervisor engine console port allows you to access

the switch CLI before the switch is configured and connected to the network.

Note Refer to the Catalyst 6000 Family Module Installation Guide for

information on connecting a terminal to the console port.

You must enter privileged mode to perform most of the tasks described in this

publication. Enter the enablecommand to enter privileged mode.

Chapter1 BasicSoftwareConfiguration


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Set the Switch IP Address

To connect to the switch via the console port and enter privileged mode, perform

these steps:

This example shows how to enter privileged mode (by default, both the normal

and privileged mode passwords are not set; press Returnat the Enter Password

prompts):

Cisco Systems Console

Enter password:

Console> enableEnter password:

Console> (enable)


Before you can Telnet to your Catalyst 6000 family switch, you need to assign anIP address, a netmask, and a default gateway to allow the switch to use IP.

Task Command

Step1 Make sure the terminal connected to

the console port is configured as

follows: 9600 baud, 8 data bits, no

parity, 2 stop bits.

Step2 Power up the switch. Output from the

bootup script appears on the terminal

screen.

Step3 At the Enter Password prompt, press

Return.

Step4 Enter privileged mode. enable

Step5 At the Enter Password prompt, press

Return.

Chapter1 BasicSoftwareConfiguration


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When configuring the switch for the first time, assign the in-band (sc0) interface

to the default VLAN, VLAN 1. After you have configured additional VLANs, youcan assign the interface to any VLAN. Make sure the IP address you specify

belongs to the subnet associated with that VLAN.

To assign an IP address, netmask, and default gateway to your switch, perform

these steps in privileged mode:

Task Command

Step1 Assign an IP address and netmask to

the switch.

set interface sc0 ip_addr/netmask

Step2 (Optional) Assign the switch interface

to a VLAN. (If you do not specify a

VLAN, VLAN 1 is used.)

set interface sc0vlan_num

Step3 Assign a default gateway to the switch. set ip route default gateway

Step4 Verify the in-band interface

configuration.

show interface

Step5 Verify the default gateway assignment. show ip route

Step6 Test connectivity to a remote host on

the network.

ping[-s] host[packet_size]

[packet_count]



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C ape ascSo aeCo gua o

Configure Ethernet Ports

This example shows how to assign an IP address and default gateway to the

switch, verify the configuration, and check connectivity to a remote host:Console> (enable) set interface sc0 10.1.1.50/255.0.0.0

Interface sc0 IP address and netmask set.

Console> (enable) set interface sc0 100

Interface sc0 vlan set.

Console> (enable) set ip route default 10.1.1.1

Route added.

Console> (enable) show interface

sl0: flags=51

slip 0.0.0.0 dest 0.0.0.0

sc0: flags=63

vlan 100 inet 10.1.1.50 netmask 255.0.0.0 broadcast 10.255.255.255

Console> (enable) show ip route

Fragmentation Redirect Unreachable

------------- -------- -----------

enabled enabled enabled

Destination Gateway Flags Use Interface

----------------------- ----------------------- ------ ---------- ---------

default 10.1.1.1 UG 0 sc0

10.0.0.0 10.1.1.50 U 0 sc0

default default UH 0 sl0

Console> (enable)ping 10.1.1.100

10.1.1.100 is alive

Console> (enable)

Configure Ethernet PortsEthernet, Fast Ethernet, and Gigabit Ethernet ports on both ends of a link must use

the same port speed and duplex. Ethernet and Fast Ethernet ports autonegotiate

duplex mode. 10/100-Mbps Fast Ethernet ports autonegotiate port speed. Gigabit

Ethernet ports are always full duplex.



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Configure Ethernet Ports

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To set the port configuration on Ethernet ports, perform these steps in privileged

mode:

This example shows how to configure a 10/100-Mbps Fast Ethernet port to

autonegotiate speed and duplex, set the port name, and verify the port

configuration:

Console> (enable) set port speed 2/12 auto

Port 2/12 speed set to auto detect.

Console> (enable) set port name 2/12 NT Server 12

Port 2/12 name set.

Console> (enable) show port 2/12

Port Name Status Vlan Level Duplex Speed Type

----- ------------------ ---------- ---------- ------ ------ ----- ------------

2/12 NT Server 12 connect 1 normal a-half a-100 10/100BaseTX

Console> (enable)

Task Command

Step1 On 10/100-Mbps Fast Ethernet ports,

set the port speed. Use the auto

keyword to configure the port to

autonegotiate both port speed and

duplex mode with the connected port.

set port speedmod_num/port_num

{10 | 100 | auto}

Step2 On Ethernet or Fast Ethernet ports, set

the port duplex mode. Use the auto

keyword to configure the port to

autonegotiate duplex mode1.

1. On 10/100-Mbps Fast Ethernet ports, you cannot change the duplex mode manually if the port speed is set

to auto.

set port duplexmod_num/port_num

{full | half| auto}

Step3 Enable the port, if necessary. set port enablemod_num/port_num

Step4 Set the port name, if desired. set port namemod_num/port_numname_string

Step5 Verify the port configuration. show portmod_num/port_num



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Configure the Global SystemSettings

Configure the Global SystemSettingsYou can specify a variety of useful global system settings for your switch, such as

system name, current date and time, system prompt, and passwords.

To configure the global system settings, perform these steps in privileged mode:

This example shows how to configure the global system settings:

Console> (enable) set system name Catalyst 6000System name set.

Catalyst 6000> (enable) set time 08/18/98 10:08:00

Sat Apr 18 1998, 10:08:00

Catalyst 6000> (enable) set password

Enter old password:

Enter new password:

Retype new password:

Password changed.

Catalyst 6000> (enable) set enablepassEnter old password:

Enter new password:

Retype new password:

Password changed.

Catalyst 6000> (enable)

Task Command

Step1 Set the system name. set system namename_string

Step2 Set the current date and time. set timemm/dd/yyhh:mm:ss

Step3 Set the system prompt. (By default, if

the system name is set, it is used as the

prompt. Use this command to override

the default name.)

set promptprompt_string

Step4 Set the console password (used toaccess the switch CLI).

set password

Step5 Set the enable password (used to

access privileged configuration mode).

set enablepass


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Check Network Connectivity

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Check Network ConnectivityAfter you assign an IP address and a default gateway and connect at least one

properly configured switch port to the network, you should be able to

communicate with other nodes on the network.

To check whether the switch is properly connected and configured, perform these

steps in privileged mode:

Task Command

Step1 Ping another node on the network. ping[-s] host[packet_size]

[packet_count]

Step2 (Optional) Trace the route of packets

through the network to another node

(only Layer 3 devices, such as routers,

will appear in the path).

traceroute [-qnqueries] host

[data_size]

Step3 If the host is unresponsive, check the

IP address, subnet mask, broadcast

address, and VLAN assignment of the

in-band (sc0) switch interface.

show interface

Step4 If the interface is properly configured,

check the default gateway assignment.

show ip route


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This example shows how to check connectivity out a switch port using the ping

and traceroutecommands:

Console> (enable)ping -s 172.20.52.20 1200 4

PING 172.20.52.20: 1200 data bytes

1208 bytes from 172.20.52.20: icmp_seq=0. time=6 ms




----172.20.52.20 PING Statistics----

4 packets transmitted, 4 packets received, 0% packet loss

round-trip (ms) min/avg/max = 5/5/6

Console> (enable) traceroute 172.20.52.20 1400

traceroute to 172.20.52.20 (172.20.52.20), 30 hops max, 1440 byte

packets

1 172.20.52.33 (172.20.52.33) 2 ms 3 ms 1 ms

2 172.20.52.20 (172.20.52.20) 4 ms * 4 ms

Console> (enable)


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C H A P T E R

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2Configuring VLANs

To configure VLANs on your Catalyst 6000 family switch, perform these steps:

Step 1 Configure VLAN Trunk ProtocolCreate a VLAN Trunk Protocol (VTP) domain

and set the VTP mode on the switch.

Step 2 Configure VLANsCreate VLANs in the VTP domain and place the switch ports

in those VLANs.

Step 3 Configure VLAN TrunksConfigure trunk ports between switches to transport

traffic from multiple VLANs.

Configure VLAN Trunk ProtocolVTP propagates information about the VLAN configuration throughout the

switched network. A Catalyst 6000 family switch can operate in any one of these

three VTP modes: ServerVTP servers advertise their VLAN configuration to other switches

in the same VTP domain and synchronize their VLAN configuration with

other switches based on advertisements received over trunk links. VTP server

is the default mode.

ClientVTP clients are similar to VTP servers, except that you cannot

create, change, or delete VLANs on a VTP client.

Chapter2 Configuring VLANs

Configure VLAN Trunk Protocol


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TransparentVTP transparent switches do not participate in VTP. A VTP

transparent switch does not advertise its VLAN configuration and does not

synchronize its VLAN configuration based on received advertisements.

Note Before you configure VLANs on the switch, you should decide

whether to use VTP. If you choose to use VTP, decide if the switch

should function as a VTP client or a VTP server. If you are

connecting the switch to an existing network, make sure your VTP

configuration is compatible with the rest of the network.

Configure the Switch as a VTP Server

When you configure a switch as a VTP server, you must define a VTP domain

before you can create VLANs.

To configure a switch as a VTP server, perform these steps in privileged mode:

Task Command

Step1 Assign a name to the VTP management

domain.

set vtp domainname

Step2 Set the VTP mode. set vtp mode serverStep3 Verify the VTP configuration. show vtp domain




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This example shows how to configure a switch as a VTP server:

Console> (enable) set vtp domain BigCorpVTP domain BigCorp modified

Console> (enable) set vtp mode server

VTP domain BigCorp modified

Console> (enable) show vtp domain

Domain Name Domain Index VTP Version Local Mode Password

-------------------------------- ------------ ----------- ----------- ----------

BigCorp 1 2 server -

Vlan-count Max-vlan-storage Config Revision Notifications---------- ---------------- --------------- -------------

9 1023 0 enabled

Last Updater V2 Mode Pruning PruneEligible on Vlans

--------------- -------- -------- -------------------------

172.20.52.40 disabled disabled 2-1000

Console> (enable)

Configure the Switch as a VTP Client

When you configure a switch as a VTP client, you cannot configure VLANs on

the switch; instead, you configure VLANs on a VTP server in the same VTP

domain as the client. The VTP client synchronizes its VLAN configuration to the

configuration of the server.

To configure a switch as a VTP client, perform these steps in privileged mode:

Task Command

Step1 Assign a name to the VTP management

domain.

set vtp domainname

Step2 Set the VTP mode. set vtp mode client

Step3 Verify the VTP configuration. (It might

take a few minutes before a VTP client

learns the VTP and VLAN

configuration information from

neighboring switches.)

show vtp domain




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This example shows how to configure a switch as a VTP client:

Console> (enable) set vtp domain BigCorpVTP domain BigCorp modified

Console> (enable) set vtp mode client

VTP domain BigCorp modified



-------------------------------- ------------ ----------- ----------- ----------

BigCorp 1 2 client -

Vlan-count Max-vlan-storage Config Revision Notifications---------- ---------------- --------------- -------------

9 1023 0 enabled


--------------- -------- -------- -------------------------


Console> (enable)

Configure the Switch as VTP Transparent

When you configure a switch as VTP transparent, you must configure VLAN

information manually on the switch. A VTP-transparent switch does not advertise

VLAN information to other switches and will ignore VTP updates from VTP

clients and servers.

To configure a switch for VTP transparent mode, perform these steps in privileged

mode:

Task Command

Step1 Set the VTP mode. set vtp mode transparent

Step2 Verify the VTP configuration. show vtp domain


Configure VLANs


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This example shows how to configure a switch as VTP transparent:

Console> (enable) set vtp mode transparentVTP domain modified



-------------------------------- ------------ ----------- ----------- ----------

1 2 Transparent -

Vlan-count Max-vlan-storage Config Revision Notifications

---------- ---------------- --------------- -------------

9 1023 0 enabled


--------------- -------- -------- -------------------------


Console> (enable)

Configure VLANsWhen you properly configure a switch for VTP, you can create, modify, and delete

VLANs on the switch (unless you configured the switch as a VTP client). When

you configure a VLAN on a VTP server, the configuration information is

distributed to switches throughout the VTP domain.

VTP clients and servers in the same domain update their VLAN configuration

based on the advertised configuration. VTP transparent switches do not act on

VTP updates; you must make changes to the VLAN configuration locally on such

switches.

Typically, in an IP network, each VLAN is associated with a single IP subnetwork.

That is, all of the hosts in a given VLAN belong to a single subnet, use the same

subnet mask, and use one or more default gateways connected to that subnetwork.

Stations in different VLANs cannot communicate with one another without either

a router configured to route between the different VLANs or manually configured

(static) routes configured on the switches.

The Catalyst 6000 family software supports many VLAN types, including

Ethernet, FDDI, ATM, and Token Ring.


Configure VLANs


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Note Two Token Ring VLAN types are supported on switches runningVTP version 2: Token Ring TrBRF VLANs and Token Ring TrCRF

VLANs. Catalyst 6000 family switches do not support

ISL-encapsulated Token Ring frames.

This section describes how to configure Ethernet VLANs only. For information

about configuring other types of VLANs, refer to the Catalyst 6000 Family

Software Configuration Guide.

Create VLANs

To configure an Ethernet VLAN in a VTP domain, perform these steps in

privileged mode:

This example shows how to create a VLAN and verify the VLAN configuration:

Console> (enable) set vlan 100 name Pubs

Vlan 100 configuration successful

Console> (enable) show vlan 100

VLAN Name Status Mod/Ports, Vlans

---- -------------------------------- --------- ----------------------------

100 Pubs active

VLAN Type SAID MTU Parent RingNo BrdgNo Stp BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ ------ ---- -------- ------ ------

100 enet 100100 1500 - - - - - 0 0

VLAN AREHops STEHops Backup CRF

---- ------- ------- ----------

Console> (enable)

Task Command

Step1 Create a VLAN by assigning it a

VLAN number and, if desired, a

VLAN name.

set vlanvlan_num[namename]

Step2 Verify the VLAN configuration. show vlanvlan_num


Configure VLANs


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Assign Switch Ports to VLANs

After you create a VLAN, you can assign one or more switch ports to the VLAN.

Devices connected to those ports will belong to that VLAN. Make sure the

connected device is properly configured with an IP address, subnet mask, and

default gateway in the subnet used for the VLAN.

To add a switch port to a VLAN, perform these steps in privileged mode:

Task Command

Step1 Add one or more switch ports to a

VLAN.

set vlanvlan_num

mod_num/port_num

Step2 Verify that the ports are properly

assigned to the VLAN.

show vlanvlan_num

Step3 Check to which VLAN a particular

port belongs.

show port[mod_num/port_num]


Configure VLAN Trunks


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This example shows how to assign ports to a VLAN and how to verify to which

VLAN the ports belong:

Console> (enable) set vlan 100 2/1-4

VLAN 100 modified.

VLAN 1 modified.

VLAN Mod/Ports

---- -----------------------

100 2/1-4

Console> (enable) show vlan 100

VLAN Name Status Mod/Ports, Vlans---- -------------------------------- --------- ----------------------------

100 Pubs active 2/1-4

VLAN Type SAID MTU Parent RingNo BrdgNo Stp BrdgMode Trans1 Trans2

---- ----- ---------- ----- ------ ------ ------ ---- -------- ------ ------

100 enet 100100 1500 - - - - - 0 0

VLAN AREHops STEHops Backup CRF

---- ------- ------- ----------

Console> (enable) show port 2

Port Name Status Vlan Level Duplex Speed Type

----- ------------------ ---------- ---------- ------ ------ ----- ------------

2/1 notconnect 100 normal half 100 100BaseTX





Console> (enable)

Configure VLAN TrunksVLAN trunks are point-to-point links that carry the traffic of multiple VLANs.

Trunk ports are useful in the network backbone, where traffic from many VLANs

is handled.

All Ethernet ports can use Inter-Switch Link (ISL) or IEEE 802.1Q encapsulation

for trunking.




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By default, all Ethernet ports are set to negotiateand attempt to use ISL

encapsulation.

If the port on the other end of the link is set to desirableor on, a port set to auto

automatically becomes a trunk port. (For complete information on the various

trunk modes and encapsulation types, refer to the Catalyst 6000 Family Software

Configuration Guide.)

To configure an Ethernet port as a trunk, perform these steps in privileged mode:

This example shows how to configure a port to become a trunk and how to verify

the trunk configuration (this example assumes that the port on the other end of the

link is set to auto):

Console> (enable) set trunk 1/2 desirable

Port(s) 1/2 trunk mode set to desirable.

Console> (enable) 07/22/1998,10:16:58:DTP-5:Port 1/2 has become isl trunk

07/22/1998,10:16:58:PAGP-5:Port 1/2 left bridge port 1/2.07/22/1998,10:17:09:PAGP-5:Port 1/2 joined bridge port 1/2.

Console> (enable) show trunk 1/2

Port Mode Encapsulation Status Native vlan

-------- ----------- ------------- ------------ -----------

1/2 desirable isl trunking 523

Port Vlans allowed on trunk

-------- ---------------------------------------------------------------------

1/2 1-1005

Port Vlans allowed and active in management domain-------- ---------------------------------------------------------------------

1/2 1,10,105,152,521-524

Port Vlans in spanning tree forwarding state and not pruned

-------- ---------------------------------------------------------------------

1/2 1,10,105,152,521-524

Console> (enable)

Task Command

Step1 Configure a port as a trunk. A message

appears on the console indicating that

the port has become a trunk.

set trunkmod_num/port_num {on|

desirable | auto} {isl| dot1q|

negotiate}

Step2 Verify that the trunk configuration is

correct.

show trunk




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C H A P T E R

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3Configuring Key Software Features

This section describes how to configure the following software features:

Configure the Login BannerHow to change the message-of-the-day

display.

Configure EtherChannelHow to configure EtherChannel on Ethernet ports.

Configure DNSHow to configure the switch to use the Domain Name

System (DNS).

Configure CDPHow to enable the Cisco Discovery Protocol (CDP).

Configure the Login BannerThe login banner, or message of the day, is the text that appears onscreen when

you open a Telnet session or console port connection to the switch. The login

banner can be up to 255 characters long.

To configure the login banner, perform these steps in privileged mode:

Task Command

Step1 Enter the message of the day (where c

is a character that signifies the

beginning and end of the message).

set banner motdc[text] c

Chapter3 Configuring Key Software Features

Configure EtherChannel


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This example shows how to configure the login banner and how to verify the

banner configuration (when connected via the console port):

Console> (enable) set banner motd *Catalyst 6000

Software Release 6.1

IP address 10.1.1.20

*

MOTD banner set

Console> (enable) exit


Catalyst 6000


IP address 10.1.1.20

Enter password:

Configure EtherChannelEtherChannel provides parallel bandwidth of up to 1600 Mbps (Fast

EtherChannel full duplex) or 16 Gbps (Gigabit EtherChannel full duplex)

between a Catalyst 6000 family switch and another switch or host by grouping

multiple Fast or Gigabit Ethernet interfaces into a single logical transmission

path.

Step2 If you are connected to the switch viathe console port, verify the login

banner by ending your session.

exit

Step3 If you are connected to the switch via

Telnet, exit and reconnect, or view the

configuration file.

show configuration

Task Command


Configure EtherChannel


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A Catalyst 6000 family switch supports a maximum of 128 EtherChannels. You

can form an EtherChannel with up to eight compatibly configured Ethernet ports

on any module in a Catalyst 6000 family switch. All ports in each EtherChannelmust be the same speed: 10, 100, or 1000 Mbps.

The Port Aggregation Protocol (PAgP) negotiates EtherChannel port groups

automatically. By default, Ethernet ports are set to auto. If a group of

EtherChannel ports set to autois connected to a group of ports set to desirableor

on, PAgP automatically creates an EtherChannel connection between those ports.

For complete information on the various EtherChannel modes, refer to the

Catalyst 6000 Family Software Configuration Guide.

Configuring an EtherChannel creates an administrative group, designated by an

integer between 1 and 1024, to which the EtherChannel belongs. When an

administrative group is created, you can assign an administrative group number or

let the next available administrative group number be assigned automatically.

Forming a channel without specifying an administrative group number creates a

new automatically numbered administrative group.

Note Before enabling EtherChannel, verify that all the ports in the channel

are enabled, are assigned to the same VLAN, and have the same

configuration on both ends of the channel.

To configure EtherChannel on a group of Ethernet ports, perform this task in

privileged mode:

Task Command

Create the EtherChannel on the desired

ports.

set port channelmod/portmode{on |

off |desirable |auto} [silent |

non-silent]


Configure DNS


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This example shows how to create a six-port EtherChannel in administrative

group 2:

Console> (enable) set port channel 2/2-7 2 mode desirable

Ports 2/2-7 left admin_group 1.

Ports 2/2-7 joined admin_group 2.

admin_group Ports

----------- -------------------------------------------------

1 1/1-2

2 2/2-7

Ports 2/2-7 channel mode set to desirable.

Console> (enable)

Configure DNSDomain Name System (DNS) allows you to use host names instead of IP

addresses to refer to other devices on the network. To use DNS, you must have

one or more name servers connected to the network.

To configure DNS, perform these steps in privileged mode:

Task Command

Step1 Set the address of the DNS server. The

first address entered is considered the

primary server. If more than one serveris entered, you can use the primary

keyword to make a particular name

server the primary server.

set ip dns serverip_addr[primary]

Step2 Set the domain name. set ip dns domainname

Step3 Enable DNS. setipdnsenable

Step4 Verify the DNS configuration. Use thenoaliaskeyword to show IP addresses

instead of server names.

show ip dns[noalias]


Configure CDP


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This example shows how to configure the switch to use DNS and how to verify

the DNS configuration:

Console> (enable) set ip dns server 10.1.1.100 primary

10.1.1.100 added to DNS server table as primary server.

Console> (enable) set ip dns server 10.1.1.122

10.1.1.122 added to DNS server table as backup server.

Console> (enable) set ip dns domain bigcorp.com

Default DNS domain name set to bigcorp.com

Console> (enable) set ip dns enable

DNS is enabled

Console> (enable) show ip dnsDNS is currently enabled.

The default DNS domain name is: bigcorp.com

DNS name server status

---------------------------------------- -------

10.1.1.100 primary

10.1.1.122

Console> (enable)

Configure CDPCisco Discovery Protocol (CDP) is a media- and protocol-independent protocol

that runs on all Cisco-manufactured equipment including routers, bridges, access

servers, and switches. CDP allows a Catalyst 6000 family switch to learn the

device type and other information about neighboring devices. CDP messages are

sent every 60 seconds by default.

To configure CDP, perform these steps in privileged mode:

Task Command

Step1 Enable CDP on the switch or on the

desired ports.

set cdp enable[mod_num/port_num ]

Step2 (Optional) Set the message interval

for CDP. The allowed range is

5900 seconds.

set cdp intervalinterval


Configure CDP


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This example shows how to configure CDP on all ports, how to set the message

interval to 100 seconds for all ports, how to verify the CDP configuration, and

how to view information about the neighboring devices:

Console> (enable) set cdp enable

CDP enabled for all ports.

Console> (enable) set cdp interval 100

CDP message interval set to 100 seconds for all ports.

Console> (enable) show cdp port

Port CDP Status Message-Interval

-------- ---------- ----------------

1/1 enabled 100

1/2 enabled 100

2/1 enabled 100Console> (enable) show cdp neighbors

* - indicates vlan mismatch.

# - indicates duplex mismatch.

Port Device-ID Port-ID Platform

-------- ------------------------------- ------------------------- ------------

3/5 002267619(cat1.cisco.com) 3/6 * WS-C5000

3/6 002267619(cat1.cisco.com) 3/5 WS-C5000

4/1 002267619(cat1.cisco.com) 4/2 WS-C50004/2 002267619(cat1.cisco.com) 4/1 # WS-C5000

4/20 069000057(cat2.cisco.com) 8/5 WS-C5500

5/1 005763872(cat3.cisco.com) 2/1 WS-C5000

5/1 066506245(cat4.cisco.com) 2/1 WS-C5505

5/1 066508595(cat5.cisco.com) 5/12 *# WS-C5505

5/1 066508596(cat6.cisco.com) 5/1 WS-C5505

Console> (enable)

Step3 (Optional) Set the time that CDPframes are held by the device that

receives them before being aged out.

The allowed range is 10255 seconds

(default: 180 seconds).

set cdp holdtimeinterval

Step4 Verify the CDP configuration. show cdp port[mod_num[/port_num]]

Step5 View information about CDP

neighbors.

show cdp neighbors

[mod_num[/port_num]] [vlan |

duplex | capabilities | detail]

Task Command


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Chapter4 Administering the Switch

Manage Configuration Files


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This example shows how to display the current configuration:

Console> (enable) show config

.....

..........

..........

.........

.........

...........

..

begin

set password $1$FMFQ$HfZR5DUszVHIRhrz4h6V70

set enablepass $1$FMFQ$HfZR5DUszVHIRhrz4h6V70

set prompt Console>

set length 24 default

set logout 20

set banner motd ^C

Catalyst 6000 #2


IP address 172.20.52.70^C

!

#system

set system baud 9600

set system modem disable

set system name

set system location

set system contact

!

#switch port analyzer

set span disable

!

#cam

set cam agingtime 1,100,522-524,1003,1005 300

end

Console> (enable)


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Manage SystemImages


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This example shows how to copy a software image from a TFTP server, reset the

switch, and check the version of the installed software image:

Console> (enable) copy tftp flash

IP address or name of remote host []? 172.20.52.3

Name of file to copy from []? cat6000-sup.6-1-1.bin

Flash device [bootflash]?

Name of file to copy to [cat6000-sup.6-1-1.bin]?

4369664 bytes available on device bootflash, proceed (y/n) [n]? y

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

CCCCCCCCCCCCCCCCCCCFile has been copied successfully.

Console> (enable) set boot system flash bootflash:cat6000-sup.6-1-1.bin prepend

BOOT variable = bootflash:cat6000-sup.6-1-1.bin,1;bootflash:cat6000-sup.6-1-1.bin

,1;

Console> (enable) reset system

This command will reset the system.

Do you want to continue (y/n) [n]? y

Console> (enable)

Autoboot executing command: "boot bootflash:cat6000-sup.6-1-1.bin"


Enter password:

Console> show flash

File Version Sector Size Built

--------------- -------------------- ------------ ------- -----------------

c6000 nmp 6.1(1) 02-11 1882546 08/15/00 14:06:03

Console>


Use the Flash File System


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Use the Flash File SystemYou can use the Flash file system to store multiple system-software images and

configuration files locally on the switch (instead of having to save them to a TFTP

server).

Flash PC (PCMCIA) cards must be formatted before use. To format a Flash PC

card, or any Flash device, perform this task in privileged mode:

This example shows how to format a Flash PC card:

Console> (enable) format slot0:

All sectors will be erased, proceed (y/n) [n]? y

Enter volume id (up to 30 characters): Supervisor Flash Card

Formatting sector 1

Format device slot0 completed

Console> (enable)

To change the default Flash device and see which device is the current default,

perform this task:

Task Command

Format the desired Flash device. format[m/]device:

Task Command

Step1 Set the default Flash device for the

switch.

cddevice:

Step2 Verify the default Flash device for the

switch.

pwd




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This example shows how to change the default Flash device and how to verify

which device is the default:

Console> (enable) cd slot0:

Console> (enable)pwd

slot0

Console> (enable) cd bootflash:

Console> (enable)pwd

bootflash

Console> (enable)

To copy Flash files between Flash devices or between a Flash device and a TFTPserver, perform these tasks in privileged mode:

Task Command

Copy the current configuration to a

Flash device or a TFTP server.

copy config{flash|file-id| tftp}

Copy a Flash file on the currentdefault Flash device to another

Flash device.

copyfile-id device:[file-id]

Copy a Flash file on the current

default Flash device to a TFTP

server.

copyfile-idtftp

Copy a file from a TFTP server to

a Flash device (you are prompted

for the Flash device name).

copy tftpfile-id




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This example shows how to copy the current configuration to the current default

Flash device:

Console> (enable) copy config flash

Flash device [slot0]?

Name of file to copy to []? 6000_config.cfg

Upload configuration to slot0:6000_config.cfg

13259828 bytes available on device slot0, proceed (y/n) [n]? y

.....

..........

..........

..

Configuration has been copied successfully.

Console> (enable)

This example shows how to copy a file from the current default Flash device to a

different Flash device:

Console> (enable) copy 6000_config.cfg slot0:


File has been copied successfully.

Console> (enable)

This example shows how to copy a file from the current default Flash device to a

TFTP server:

Console> (enable) copy 6000_config.cfg tftp


Name of file to copy to [6000_config.cfg]?

-


Console> (enable)




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This example shows how to copy a file from a TFTP server to a Flash device:

Console> (enable) copy tftp flash


Name of file to copy from []? 6000_config.cfg

Flash device [bootflash]? slot0:

Name of file to copy to [6000_config.cfg]?


-


Console> (enable)

To display a list of files on a Flash device, perform this task in privileged mode:

This example shows how to list the files on a Flash device:

Console> (enable) dir

-#- -length- -----date/time------ name

2 7004 Aug 14 2000 10:06:37 6000_config.cfg

3 3102520 Aug 14 2000 10:09:42 cat6000-sup.6-1-1.bin

13259956 bytes available (3124044 bytes used)

Console> (enable)

To delete files on a Flash device, perform this task in privileged mode:

This example shows how to delete a file on a Flash device:

Console> (enable) delete 6000_config.cfg

Console> (enable)

Task Command

Display a list of files on a Flash device. dir[[device:]file-id] [all| deleted|

long]

Task Command

Delete a file on a Flash device. delete[[m/]device:]file-id


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Reset a Module or the Switch

R t M d l th S it h


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Reset a Module or the SwitchSometimes you need to reset an individual module or the entire switch (for

example, when you install a new system software image). If you are connected to

the switch via Telnet, resetting an individual module can disconnect your session

(if the Telnet session was established through a port on that module). If you reset

the entire switch, your Telnet session will disconnect.

To reset an individual module installed in the switch, perform this task in

privileged mode:

This example shows how to reset an individual module in the switch:

Console> (enable) reset 2This command will reset module 2 and may disconnect your telnet

session.


Resetting module 2...

Console> (enable)

08/18/2000,09:32:23:SYS-5:Module 2 is online

Console> (enable)

To reset the entire switch, perform this task in privileged mode:

This example shows how to reset the entire switch:

Console> (enable) reset

This command will reset the system.


Console> (enable)

Task Command

Reset an individual module. resetmod_num

Task Command

Reset the switch. reset


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5Default Configurations

This section describes the following:

Default Global System Configuration

Default Ethernet Configuration

Default VTP Configuration

Default VLAN Configuration

Default Trunk Configuration

Default Global SystemConfigurationThe default supervisor engine configuration is as follows:

Feature Default Setting

Console port The console port is configured as

follows: 9600 baud, 8 data bits, no

parity, 2 stop bits.

Passwords There is no default password for normal

and privileged modes. Press Returnat

the Enter Password prompt.

System prompt Console>

Chapter5 Default Configurations

Default Ethernet Configuration


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Default Ethernet ConfigurationThe default Ethernet, Fast Ethernet, and Gigabit Ethernet port configuration is as

follows:

In-band (sc0) interface configuration The in-band interface is in VLAN 1; theIP address, subnet mask, and broadcast

address are set to 0.0.0.0.

Default gateway Default gateway address is 0.0.0.0 with a

metric of 0.



Port enable state All ports are enabled

Port name None

Port duplex setting Auto (to autonegotiate duplex mode)

on Ethernet and Fast Ethernet; full

duplex on Gigabit Ethernet (half

duplex is not supported)

Port speed (on 10/100-Mbps ports) Auto (to autonegotiate both speed andduplex)

Spanning Tree Protocol Enabled for VLAN 1

Spanning tree port-VLAN cost 19 for Ethernet and Fast Ethernet

ports, 4 for Gigabit Ethernet ports

Spanning tree port-VLAN priority 32

VLAN All ports are on VLAN 1

EtherChannel Disabled

Flow control on Gigabit Ethernet ports Flow control send is set to desired;

flow control receive is set to off

Flow control on other Ethernet ports Flow control receive is set to off; send

is not supported


Default VTP Configuration

DefaultVTPConfiguration


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Default VTP ConfigurationThe default VTP configuration is as follows:

Default VLAN ConfigurationThe default Ethernet VLAN configuration is as follows:


VTP Disabled (switch is in a no-management domain state)

VTP version 2 Disabled

VTP domain name Not specified

VTP mode Server

VTP pruning Disabled

VTP password None (management domains are set to nonsecure mode)


Default VLAN1

1. In effect when a port is not a trunk.

VLAN 1

Native VLAN2

2. In effect when a port is an 802.1Q trunk.

VLAN 1

MTU size3

3. MTU=maximum transmission unit

1500 bytes

Pruning eligibility VLANs 21000 are pruning-eligible

VLAN SAID4value

4. SAID=Security Association Identification

100,000 plus the VLAN number. The SAID for VLAN 1

is 100001, for VLAN 2 100002, for VLAN 3 100003, and

so on.


Default Trunk Configuration

DefaultTrunkConfiguration


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Default Trunk ConfigurationThe default trunk configuration on Ethernet ports is as follows:


Trunking state Disabled

Encapsulation Negotiate (if both ports are set to negotiate mode, the trunk

uses ISL encapsulation)Trunk mode Auto

Allowed VLANs All VLANs are allowed for trunking


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I N D E X

A

administrative group 3-3

assigning switch ports to VLANs 2-7

auto mode 3-3

autonegotiating

duplex mode 1-5

port speed 1-5

B

banner, login 3-1

C

cd command 4-5

CDP

configuring 3-5

Cisco Discovery Protocol

See CDP

configuration files

managing 4-1

configuring

CDP 3-5

DNS 3-4

EtherChannel 3-2

switch 1-2

VLANs 2-5

VLAN trunks 2-8

console port 1-2,5-1

copy command 4-3

copy config command 4-6

copy tftp command 4-6

creating VLANs 2-6

D

default configuration settings

Ethernet ports 5-2Fast Ethernet ports 5-2

Gigabit Ethernet ports 5-2

trunking 5-4

VLANs 5-3

VTP 5-3

default gateway 1-4

delete command 4-8

desirable mode 3-3

dir command 4-8

dir deleted command 4-9

DNS, configuring 3-4


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Index

L R


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L

login banner 3-1

M

managing configuration files 4-1

message of the day 3-1

module, resetting 4-10

N

netmask 1-4

P

PAgP 3-3

PCMCIA cards

See Flash PC cards

ping command 1-4,1-8

Port Aggregation Protocol

See PAgP

port speed 1-5

privileged mode 1-3

pwd command 4-5

R

reset command 4-3

resetting module 4-10

resetting switch 4-10

S

set banner motd command 3-1

set boot system flash command 4-3

set cdp enable command 3-5

set cdp holdtime command 3-6

set cdp interval command 3-5

set enablepass command 1-7

set interface sc0 command 1-4

set ip dns domain command 3-4

set ip dns enable command 3-4

set ip dns server command 3-4

set ip route default command 1-4

set password command 1-7

set port duplex command 1-6

set port enable command 1-6

set port name command 1-6

set port speed command 1-6set prompt command 1-7

set system name command 1-7

set time command 1-7

set trunk command 2-9

set vlan command 2-6,2-7

set vtp domain command 2-2

Index

set vtp mode client command 2-3T


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set vtp mode server command 2-2

set vtp mode transparent command 2-4

show cdp neighbors command 3-6

show cdp port command 3-6

show configuration command 3-2,4-1

show flash command 4-3

show interface command 1-4,1-8

show ip dns command 3-4

show ip route command 1-4,1-8

show port command 1-6,2-7

show trunk command 2-9

show vlan command 2-6,2-7

show vtp domain command 2-2,2-4

software features

related documentation viii

software images

downloading from TFTP server 4-3

managing 4-3

squeeze command 4-9

subnet mask

See netmask

supervisor engine configuration

default settings 5-1switch

configuring 1-2

configuring as VTP client 2-3

configuring as VTP server 2-2

resetting 4-10

switch ports, assigning to VLANs 2-7

T

TFTP servers

downloading software images from 4-3

traceroute command 1-8

trunking

default configuration settings 5-4

U

undelete command 4-9

V

VLANs

configuring 2-5

creating 2-6


VLAN Trunk Protocol

See VTP

VLAN trunks, configuring 2-8

VTP

client 2-1,2-3


server 2-1,2-2

transparent mode 2-4

transparent switches 2-2

Documents

Quick Software Configuration 6000's